Oculus Tray Tool and Oculus Debug Tool doesn't work for improving the graphics

I'm busy working on a project which requires the Oculus Rift in Unity. I would like to show a 360° video in a room in Unity3D.I noticed that de graphics looks a bit blurry in the oculus, while the graphics in the game window of unity looks great. For our 360° video we're using 4K and 8K material.

I've tried to adjust the bits per frame in the Oculus Debug Tool from 1.0 up to 2.0 but that didn't changed anything in my opinion. Also I tried the Oculus Tray Tool to do the same thing with supersampling but the result is the same. I've wachted many tutorials but still my graphics are blurry. Even in de Oculus menu and in the runtime of Unity3D. To make it more clear i've tried to simulate the footage comparing to the game window and the Oculus view.

2. No antialiasing. Set QualitySettings.antiAliasing to 2 or higher, or enable OVRManager.useRecommendedMSAALevel.

3. Deferred rendering. Be sure to use Forward.

4. Image effects. We generally don't recommend using image effects because they cost a lot of texture bandwidth and may introduce artifacts.

5. Low performance when adaptive resolution is enabled. Use the Unity profiler to make sure your game renders at 90Hz before you enable OVRManager.enableAdaptiveResolution. If your game is rendering slowly, adaptive resolution will turn down the render scale to save performance. We only recommend using it when your game is generally running at 90Hz and you need an extra performance boost here and there.